This read-write object selects which set of local fault conditions will trigger a switchover on this port: synoptics adds SynOptics-specific auto-partition and network-management partition events on top of the standard set, while standard uses only link-off, low light, jabber, and similar baseline events. An admin sets this to synoptics when the redundant hardware supports SynOptics proprietary remote-fault signaling and they want the extra fault conditions recognized, or standard for baseline fault detection. This choice directly affects how sensitive the automatic redundancy switchover is to marginal link conditions.